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A series examining relationships between U.S. businessmen, industrialists and philanthropists in the 19th and 20th centuries begins with steel magnate Andrew Carnegie (1835-1919) and coal king Henry Clay Frick (1849-1919).

A series examining relationships between U.S. businessmen, industrialists and philanthropists in the 19th and 20th centuries begins with steel magnate Andrew Carnegie (1835-1919) and coal king Henry Clay Frick (1849-1919).